{"id":"F2006B04017","name":"AD/BEECH 55/72 - Pilot and Copilot Seat Tracks and Seat Frames","slug":"ad-beech-55-72-pilot-and-copilot-seat-tracks-and-seat-frames","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43626,"registerId":"commonwealth-F2006B04017-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 55/72 - Pilot and Copilot Seat Tracks and Seat Frames","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nBeechcraft 55, 58 and 95-55 (Baron) Series Aeroplanes\n\nAD/BEECH 55/72 Pilot and Copilot Seat Tracks and Seat Frames 13/88\n\nApplicability: 1. Models 58, 58A with S/Nos TH-579 through TH-702 58P, 58PA with S/Nos TJ-12 through TJ-27 58TC, 58TCA with S/Nos TK-1, TK-2.\n\n    2. Models 95-B55, 95-B55A with S/Nos TC-1918 through TC-2456 E55, E55A with S/Nos TE-1071 through TE-1201.\n\n    3. Models 58, 58A with S/Nos TH-703 through TH-1388 TH-1390 through TH-1395. 58P, 58PA with S/Nos TJ-28 through TJ-435 TJ-437 through TJ-443. 58TC, 58TCA with S/Nos TK-3 through TK-146 TK-148 through TK-150.\n\nRequirement: For Para 1. Action in accordance with Beechcraft Mandatory SB 2010 Rev 1 Part I. For Para 2. Action in accordance with Beechcraft Mandatory SB 2010 Rev 1 Part II.\n\nFor Para 3. Action in accordance with Beechcraft Mandatory SB 2010 Rev 1 Part I and Part II.\n\nNote 1: FAA AD 88-21-02 refers.\n\nNote 2: Compliance with Beechcraft SB 2233 is an acceptable alternative to modification per SB 2010 Part I.\n\nCompliance: At the next scheduled inspection for Maintenance Release issue after 29 December 1988.\n\nBackground: To prevent failure of pilot and copilot seat attachment during an emergency landing.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a discrete airworthiness directive with a clear, narrow scope: addressing a specific mechanical defect in specific aircraft models. It has not expanded beyond its original safety purpose."},"complexity_factors":["Multiple applicability groups (3 distinct serial number ranges) with different compliance requirements","Cross-reference to external technical documents (Beechcraft Mandatory SB 2010 Rev 1 Parts I and II, and SB 2233)","Reference to US FAA AD 88-21-02 for additional context","Conditional compliance structure: different actions required depending on which applicability paragraph applies","Technical aviation terminology requiring domain knowledge (Maintenance Release, serial numbers, service bulletins)"],"plain_english_summary":"This AD mandates inspection and modification of pilot and copilot seat tracks and frames on certain Beechcraft 55, 58 and 95‑55 Baron aeroplanes (specific serial-number groups) per Beechcraft service bulletins. It affects owners, operators and maintenance engineers and is compulsory because seat failure in an emergency could cause serious injury or death. Work must be completed at the next scheduled inspection for Maintenance Release after 29 December 1988; Beechcraft SB 2233 is an approved alternative."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD’s scope matches its stated purpose: it directs inspection/modification of pilot and copilot seat tracks/frames for the listed models and serial-number ranges to prevent seat attachment failure. It does not broaden obligations beyond those specific aircraft or prescribe additional unrelated measures."},"complexity_factors":["Multiple specific model and serial-number ranges increase administrative effort to determine applicability (Applicability section).","Requirement references external service documents (Beechcraft Mandatory SB 2010 Rev 1 Parts I/II) rather than giving detailed technical steps in the AD (Requirement).","Acceptable alternative compliance (SB 2233) creates a need to assess equivalence of different modifications (Note 2).","Compliance timing tied to the next scheduled Maintenance Release after a historical date requires coordination with maintenance scheduling and record-keeping (Compliance).","Cross-reference to FAA AD adds an external regulatory linkage that may affect interpretation or supporting documentation (Note 1)."],"plain_english_summary":"This airworthiness directive requires owners/operators of the listed Beechcraft 55/58/95 series aeroplanes to inspect and, if necessary, modify pilot and copilot seat tracks and seat frames in accordance with Beechcraft Mandatory Service Bulletin 2010 Rev 1 (Parts I and/or II) or the alternative SB 2233. Compliance must occur at the next scheduled maintenance release after 29 December 1988; operators pay for and arrange the work and CASA enforces it. The stated aim is to prevent seat attachment failure in an emergency landing."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-55-72-pilot-and-copilot-seat-tracks-and-seat-frames","history":"/api/acts/ad-beech-55-72-pilot-and-copilot-seat-tracks-and-seat-frames/history","analysis":"/api/acts/ad-beech-55-72-pilot-and-copilot-seat-tracks-and-seat-frames/analysis","conflicts":"/api/acts/ad-beech-55-72-pilot-and-copilot-seat-tracks-and-seat-frames/conflicts","importantCases":"/api/acts/ad-beech-55-72-pilot-and-copilot-seat-tracks-and-seat-frames/important-cases","documents":"/api/acts/ad-beech-55-72-pilot-and-copilot-seat-tracks-and-seat-frames/documents"}}